Joseph mcmahon



Patented Aug. I6, J. McMAHUN.

c A R BU M P EB (Application led Apr. 18. 189B.)

(-No Model.)

f the points o fully set forth in the following specification,

Ni'rnraras IATENT l' muon.

J OSEPII MOMAHON, OF CHICAGO, ILLINOIS, .ASSIGNOR OF ONE-IIALFTO ELLEN E. MCMAI'ION, OFSAME PLACE.

CAR-BUMPER".

SPECIFICATION forming part of Letters P Appiicaion ned April 1s, 189s.

To aZZ whom it may concern.-

Be it known that I, JOSEPH MOMAHON, a citizen of the United States, residing at Chicago, in thecounty of Cook and State of Illinois, have invented certain new and useful Improvements in Car -Bumpers,` which are reference being had to the accompanying drawings, forming a part hereof, and in which- Figure l shows my said car-bumper in side elevation with its head end in sectional view. Fig. 2 shows the said device in plan view. Fig. 3 shows a piece to form a clamp on the connecting-bar n. Fig. 4 shows Fig. 3 applied to bar n. Fig. 5 shows a transverse sectional View of Fig. 4, taken about midway between Fig.l 6 shows a, transverse section taken on a plane behind thetransverse support and looking toward the bumperhead.

Like letters of reference denote like parts.

The object of my invention is to construct a car-bumper which shall be more reliable than those which contain' wood in their construction and depend on the ground for their hold.

My object is, further, to make all of my construction above the ties, so as to make it possible to erect mystructure at any season and on any track on a bridge, trestle, or wherevera track is or can be laid.

To attain said desirable ends, I construct my said new device in substantially the fol lowing manner, namely: I bend the two last end rails of a track upward and inward and so as to iit into the channeled sides of the bumper-body a. I make saidbumper-body of cast-iron and curve said channels and rails to iit into each other. Through said rails and body are passed about five strong bolts h, which alsopass through iillings Zt, placed between the head and iiange of the curved rail. The arch of said rails descends both ways about equally; but the rear ends of said rails at r come within vthe sides ofthe straight rails Z and are bolted to them. `Said rails Z are straight and lie on the inside of the rails j, to which they vare bolted `bytwo sets or pairs of bolts t and t and blocks u, also held by said bolts. Said railsZ tie the ends of the arent No. 609,159, dated August 1e, 1898. Serial No. 677,992. (No model.)

vertical `arch which holds the body ca and make it rigid. To still further strengthen said arch, there is a transverse bar m2, whose ends are bent downward to form the legs m, placed under the center of the arch and secured to the head by a bolt t', and the ends of said legs are bolted to the straight rails Z by bolts m. Below the rear end of the body a and near midway to the ties is a cross-bar p, with cross-heads at each end of it, fitted between` the rails j, to which it is held by bolts p to prevent the buckling of said rails. Just beyond the foot of the frontends of the arches is a transverse bar n,with incurved end hooks o to hold the rails j to gage, and wit-hin the inner sides of the rails Z is a piece of iron with parts o o2 o3, of whichthe part o is raised to fit on the ange ofthe rail. The wings o2 are turned under the bar n to hold in place without weakening the bar, as would be the case when bolts are used, as well as for the purpose of cheapening the construction and at the same time making the said parts perfectly adjustable, which could not be the case when bolts were used. The said cross-shaped part is fitted on the bar n by heating and shrinking on after it is Iitted while hot. There is a hole l) in the body a containing coiled springs c, one within the other,'and as many as can work, only one spring being shownhere for the purpose of clearness of illustration, toy obtain all the resistance possible.` The cushion-head g has a stem CZ, which iits the hole Z9," in which there is a longitudinal slot e, through which passes a key-bar f. The rails j are ends of the track proper, to which they are connected and upon which the train Astands when the bumper is in use. Said condition would involve the tearing of the track from under the wheels if any part of my structure was forced to give way, as that is here shown to be the weakest part of the entire mechanism.

l. The combination with a spring-actuated cushion-head and aside-channeled bumperbody, of centrally-arched track end rails and I straight rails within said track-railsbolted thereto at each end of :the arch, substantially as specified.

2. The combination with a spring-actuated IOO cushion-head and a side-channeled bumper` 1o body with track-supported supporting-legs under a transverse bar, under the center of said arch, of centrally-arched track ends and straight rails within said track-rails at the arch ends of said track-rails, substantially as speciied.

Y JOSEPH MCMAHON. Witnesses:

WM. ZIMMERMAN, ELLEN E. MoMAHoN. 

